Flush-tank valve



(No Model.)

P.l V. DWYER.

PLUSH TANK VALVE.

No. 399,506. Patented. Mar. 12,4 1889.

NiTnn STATES PATENT rricn.

PATRICK VINCENT DWYER, OF CT. PAUL, MlNNFSOTA.

FLUSH-TANK VALVE.

SPECIFICATION forming part of Letters Patent No. 399,506, dated March 12, 1889.

Application filed September 1, 1888. Serial No. 284,335. (No model.)

To aZZ whom, it may concern:

Be it known that I, PATRICK VINCENT DWYER, a citizen ot' the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented certain new and useful Improvements-in Flush-Tank Valves, of which the following' is a specification. y

My invention relates to fiushingetanks for water-closets, and has reference more particularly to that cla-ss in which the valve ti ps to permit the discharge of water from the tank.

In the drawings, Figure l is a vertical scetional view oi' a portion of a tank, showing the valve closed; Fig. 2, a similar view with the valve opened; Fig. 3, a sectional view of the overflow-tube or siphon on the line :1' of Fig. l g Fig. 4, a top plan view of the valve-seat, and Fi 5 a perspective sectional view ot' the saine.

A indicates a tank, which may be made of any suitable material and of any desired size and form, said tank being provided with an opening in its bottom, through which passes a tube, B, as shown in Figs. l and 2. This tube B .is connected with the discharge-pipe by means of a coupling, C, in the ordinary manner, and is provided at its upper end, within the tank, with a laterally-extending flange, B', which rests upon the bottom of the tank, and which is drawn so firmly against the latter by the coupling C as to prevent leakage. In the upper face of the flange B is an annular groove, o, which will preferablyv be undercut, as represented in Figs. l, Q, and 5, to receive and hold a packing-ring, l), which is adapted to form the valve-seat The exact form of the groove a is a matter that is capable of variation; but it should be such as to hold the packing-ring l) firmly in place after the latter has been forced or pressed into the groove without the aid of other devices. The tube or pipe B is further provided with ears CZ d, to which is pivoted the valve D, the lower edge of the valve resting upon the packing-ring b, so that when closed, as shown in Fig. l, no water can escape through the tube B. The valve is open at its center, while extending upward from the valve, in line with the opening, is a tube, E, the upper end of which tel F indicates a tube of larger diameter than the tube E, which surrounds and isf set away from the latter, as shown in Figs. l and 2. The upper end of tube F is closed, while its lower end is open to permit thc water to pass upward between the tubes E and F and over and into the top of tube E.

The tube F is rendered adjustable upon or with reference to the tube E in any suitable manner, but preferably by means of setscrews (l, (shown in Fig. 1,) for a purpose presently explained.

The cap or top of tube F is connected, by

means of a rod, lll', with an. elbowlever, L.

which is pivoted to the tank, while the other arm of the elbow-lever is provided with a rod, chain, or cord,J, extending to any convenient point, as shown in Figs. l. and 2. lVhen the valve is closed, as in Fig. l, the water will stand on a level with the upper end of the tube E, the latter acting as an overiiow-pipe for the tank. Then it is desired to flush the bowl, (not shown,) it is only necessary to pull down upon the chain or cord, and thereby tip the valve D and raise it oit its seat, as shown in Fig. 2, the water, of course, flowing as long as the valve is held open.

' The proper way to do is to tip the valve D,

hold it open a moment, and then allow it to resume or return it to its normal position. The opening or tipping ot' the valve will, of course, destroy the equilibrium of the airpressure within the tube E and the dischargepipe, but when the valve is closed to its scat the outgoing or receding water within the discharge-pipe creates a partial vacuum within the tube E. This action, together with the pressure of the air on the surface ofl the wa ter in the tank, causes the water to rise up into the space between the tubes E F and iow into the tube E, the tubes or pipes E F acting after the manner oli' a siphon. The water will continue to tlow into the tulze F until it falls lo the level oli' the lower odg lf the tube F, when the air entering between the tubes E F restores thc cquilibriu 1n. The tank may now again bc lllcd, the walcr rising to the top ol' the tube IC.

The amount oi' water to bc siphonod from the tank into the bowl is a matter that can IOO be regulated and controlled as desired by minates a-t about the high-water line of; the y raising or lowering the lube F upon or with tank. i

reference to the tube E, for the si phoning` action is stopped as soon as the water in the tank falls below the lower edge of the tube F.

By means of the set-screws G the tube F may be held in any ot' its adjusted positions and the siphoning action controlled, as above stated. If .this Siphoning' action is not de sii-ed, the outer tube, F, may be omitted and the rod H connected directly with tube E, and in such case water would be discharged only when the valve is tipped and held open or when it overiows into the top of tube E.

By connecting' the valve with a rod, as shown, I can actuate it positively in both opening` and closing, which is important, in that I am enabled to hold it open and allow the water `to run out through the dischargepipe, or else to close the valve and cause the siphoning to take place.

The closing of the valve is not dependent upon the rise of water within the tank, but is effected manually through the connections H, I, and J. This rod H may be of any desired length and extend from the tube E in any direction, thereby enabling the tank to be set up in places where ordinarily it could not be advantageously set up.

The principal advantages of the tipping valve are that it cannot be lifted oil its seat and may be actuated with considerably less eiort than the vertically-moving valves.

An advantage otl the construction of the tube B and its packing-ring lies in the fact that the ring can be renewed from time to time without removing or dismounting any other part, and, furthermore, is not liable to be torn, as is the case where it is clamped between two surfaces screwed together. It can be made separately and sold to the trade, if

desired, so as to be used with valves differing slightly from that shown herein.

Having,` thus described my invention, what I claim is l. In combination with a ushing-tank, A, having,` an outlet, a hinged valve, I), provided with an upright tube, E, a shorter tube, F, closed at its upper end and surrounding and separated from tube `Il, and means for tipping' the Valve and its tubes positively.

2. In combination with a tank having an outlet, a valve, D, provided with a tube, E, and adapted to close the outlet, and an adjustable pipe, F, closed at its upper end and secured to the pipe E, substantially as and for the purpose set forth.

In testimony whereof I have hereunto set my hand in the presence of two snibscribingl witnesses.

PATRICK VINCENT DWYER.

Witnesses:

C. N. XVOODWARD, I-I. S. VEBS'TER, 

